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  • Articles: DFG German National Licenses  (3)
  • 1970-1974  (3)
Source
  • Articles: DFG German National Licenses  (3)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Numerische Mathematik 22 (1974), S. 137-147 
    ISSN: 0945-3245
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract In this paper we prove a variational inequality which gives a necessary condition for a minimum of a certain in general non-differentiable function. This inequality is applied to problems of best approximation and optimization to deduce global conditions for a minimum.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Computing 5 (1970), S. 295-302 
    ISSN: 1436-5057
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Description / Table of Contents: Summary The generalizedKolmogoroff-criterion is always sufficient, but, in general, not necessary for a best approximation. With the aid of a fixed-point property of the metric projection, we give a characterization of certain subsets of a linear normed vector spaceR, for which, for every elementf inR, there is a best approximationv 0 off such thatv 0 satisfies theKolmogoroff-criterion.
    Notes: Zusammenfassung DasKolmogoroff-Kriterium ist stets eine hinreichende jedoch im allgemeinen nicht notwendige Bedingung für eine beste Approximation. Mit Hilfe einer Fixpunkteigenschaft der metrischen Projektion werden gewisse der Teilmengen eines normierten VektorraumesR charakterisiert, für die für jedes Elementf ausR mindestens eine beste Approximation fürf existiert, die demKolmogoroff-Kriterium genügt.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Mathematische Annalen 212 (1974), S. 89-101 
    ISSN: 1432-1807
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
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